Multivariate closed-loop model for analysis of cardiovascular dynamics.
This paper introduces a closed-loop model for the analysis of interactions between heart rate and blood pressure variability, and respiration. The respiratory influence is modeled with an anti-causal structure to control the possible phase lead of heart rate to instantaneous lung volume. The closed-loop structure between heart rate and blood pressure allows the analysis of inter-relationships between the signals. Simulations and results on experimental data show the identifiability of the model and the robustness of the noise source contribution analysis over a wide range of model orders.
Korhonen
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VTT Information Technology, Tampere, Finland. Ilkka.Korhonen@vtt.fi
D001794:Blood Pressure; D003198:Computer Simulation; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008955:Models, Cardiovascular; D012119:Respiration; D012815:Signal Processing, Computer-Assisted